Metal alkoxide, and aqueous resin crosslinking composition and aqueous resin composition which use same

An aqueous resin composition comprising at least one aqueous resin containing at least any one of an alcoholic hydroxy group and a carboxy group, at least one compound selected from a polycarbodiimide and a polyoxazoline, and a metal alkoxide represented by the following formula (1-1), (1-2), or (1-3) and having a mass average molecular weight of 800 to 8,500:

• Ti(OA)4 (1-1)
• Zr(OA)4 (1-2)
• Al(OA)3 (1-3)
• wherein A's are each independently a residue resulting from removal of a hydroxy group from a polyalkylene glycol monohydrocarbyl ether represented by the following general formula (1a):
• R11(OCHR12CH2)nOH (1a)
• wherein R11 is an alkyl group having 1 to 4 carbon atoms or a phenyl group;
• R12 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;
• and n is an integer of 4 to 45,
• OR
• a metal alkoxide represented by the following formula (2-1), (2-2), or (2-3) and having a mass average molecular weight of 600 to 6,000:
• Ti(OA)p(OR)4-p (2-1)
• Zr(OA)q(OR)4-q (2-2)
• Al(OA)r(OR)3-r (2-3)
• wherein A's are each independently a residue resulting from removal of a hydroxy group from a polyalkylene glycol monohydrocarbyl ether represented by the following general formula (1a);
• R's are each independently an alkyl group having 1 to 20 carbon atoms;
• p and a are each a number of 2 or more and less than 4;
• and r is a number of 2 or more and less than 3;
• R11(OCHR12CH2)nOH (1a)
• wherein R11 is an alkyl group having 1 to 4 carbon atoms or a phenyl group;
• R12 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;
• and n is an integer of 4 to 45.